PMID- 27327271 OWN - NLM STAT- MEDLINE DCOM- 20170719 LR - 20190213 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 11 IP - 6 DP - 2016 TI - Redesigning Aldolase Stereoselectivity by Homologous Grafting. PG - e0156525 LID - 10.1371/journal.pone.0156525 [doi] LID - e0156525 AB - The 2-deoxy-d-ribose-5-phosphate aldolase (DERA) offers access to highly desirable building blocks for organic synthesis by catalyzing a stereoselective C-C bond formation between acetaldehyde and certain electrophilic aldehydes. DERA s potential is particularly highlighted by the ability to catalyze sequential, highly enantioselective aldol reactions. However, its synthetic use is limited by the absence of an enantiocomplementary enzyme. Here, we introduce the concept of homologous grafting to identify stereoselectivity-determining amino acid positions in DERA. We identified such positions by structural analysis of the homologous aldolases 2-keto-3-deoxy-6-phosphogluconate aldolase (KDPG) and the enantiocomplementary enzyme 2-keto-3-deoxy-6-phosphogalactonate aldolase (KDPGal). Mutation of these positions led to a slightly inversed enantiopreference of both aldolases to the same extent. By transferring these sequence motifs onto DERA we achieved the intended change in enantioselectivity. FAU - Bisterfeld, Carolin AU - Bisterfeld C AD - Institut fur Bioorganische Chemie, Heinrich-Heine-Universitat Dusseldorf im Forschungszentrum Julich, 52426, Julich, Germany. FAU - Classen, Thomas AU - Classen T AD - Institute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Julich GmbH, 52425, Julich, Germany. FAU - Kuberl, Irene AU - Kuberl I AD - Institut fur Bioorganische Chemie, Heinrich-Heine-Universitat Dusseldorf im Forschungszentrum Julich, 52426, Julich, Germany. FAU - Henssen, Birgit AU - Henssen B AD - Institut fur Bioorganische Chemie, Heinrich-Heine-Universitat Dusseldorf im Forschungszentrum Julich, 52426, Julich, Germany. FAU - Metz, Alexander AU - Metz A AD - Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-Universitat Dusseldorf, Dusseldorf, Germany. FAU - Gohlke, Holger AU - Gohlke H AD - Institute of Pharmaceutical and Medicinal Chemistry, Heinrich-Heine-Universitat Dusseldorf, Dusseldorf, Germany. FAU - Pietruszka, Jorg AU - Pietruszka J AD - Institut fur Bioorganische Chemie, Heinrich-Heine-Universitat Dusseldorf im Forschungszentrum Julich, 52426, Julich, Germany. AD - Institute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Julich GmbH, 52425, Julich, Germany. LA - eng PT - Journal Article DEP - 20160621 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Amino Acids) RN - 0 (Pyruvates) RN - EC 4.1.2.- (Aldehyde-Lyases) RN - EC 4.1.2.13 (Fructose-Bisphosphate Aldolase) RN - EC 4.1.2.14 (phospho-2-keto-3-deoxy-gluconate aldolase) SB - IM MH - Aldehyde-Lyases/chemistry/metabolism MH - Amino Acid Sequence MH - Amino Acids/metabolism MH - Biocatalysis MH - Escherichia coli/enzymology MH - Fructose-Bisphosphate Aldolase/chemistry/*metabolism MH - Kinetics MH - Models, Molecular MH - Phylogeny MH - *Protein Engineering MH - Protein Structure, Secondary MH - Pyruvates/metabolism MH - Stereoisomerism MH - Substrate Specificity PMC - PMC4915726 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2016/06/22 06:00 MHDA- 2017/07/20 06:00 PMCR- 2016/06/21 CRDT- 2016/06/22 06:00 PHST- 2016/02/08 00:00 [received] PHST- 2016/05/16 00:00 [accepted] PHST- 2016/06/22 06:00 [entrez] PHST- 2016/06/22 06:00 [pubmed] PHST- 2017/07/20 06:00 [medline] PHST- 2016/06/21 00:00 [pmc-release] AID - PONE-D-16-05568 [pii] AID - 10.1371/journal.pone.0156525 [doi] PST - epublish SO - PLoS One. 2016 Jun 21;11(6):e0156525. doi: 10.1371/journal.pone.0156525. eCollection 2016.